I believe the most appropriate is a selective medium and differential medium. Selective medium types are formulated to support the growth of one group of organism, but inhibit the growth of another. Blood agar is a differential medium that distinguishes bacterial species by their ability to break down the red blood cells included in the media. Blood agar is often used to distinguish between the different species of pathogenic streptococcus bacteria.
The transport of zebra mussels to the US took place involuntarily through the discharge of ballast water from European ships with contaminated cargo, in the 1980s, spreading across the Great Lakes region.
<h3 /><h3>Impacts on the environment</h3>
This freshwater mollusk can negatively impact the environment by filtering out algae that feed native species and clogging up water transport and storage systems.
Therefore, due to its high reproduction rate, zebra mussels spread rapidly and render water systems unusable, generating significant ecological and economic impacts.
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Answer:
a. a very cold ecosystem, because they would lose too much body heat
Explanation:
<em>Ectotherms would be l</em><em>east common in very cold ecosystem, because they would lose too much body heat.</em>
Generally, ectotherms are organisms whose internal physiological temperature requirement depends on external sources. They generate very little heat internally and as such, rely on heat sources in the environment for the necessary physiological heat for their bodies.
Consequently, ectotherms live in environments where temperature are more or less constant or constantly seek out external sources of heat for their bodies.
<u>In a very cold environment, the opportunity to seek out external source of heat would not be possible for ectotherms, and body heat would be lost to the environment in the process of maintaining constant body temperature. Hence, they are least likely to occupy this kind of environment.</u>
<em>The correct option is </em><em>a.</em>
Answer:
DNA polymerases from human cells will denature under these conditions.
Explanation:
Under the PCR conditions described, DNA polymerase from <em>T. aquaticus </em>would be more effective than DNA polymerase from human cells. This is due to the higher optimal temperature of DNA polymerase from <em>T. aquaticus. </em>